Which is the most common plant used as green manure in India?

In the dairy industry,cattle farmers are central because .......

Which organisms are primarily included as pests?

What is the practice of alternating leguminous crops with forage crops to improve soil structure and fertility called?

Blue revolution:
$I$. It is the rapid expansion of intensive commercial aquaculture.
$II$. It aims to increase global food production and reduce widespread hunger.
Which of the statements given above is/are correct?

What became useful in the increased production of food thousands of years ago?